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BS7671 Application to Power Stations

Chris Bailey

Please can someone offer some advice on the implementation of BS7671 on a new build power station in the UK. I have been challenged that the installation can be inline with IEC standards (because its a power station) , which to my understand isn't considered best practise in alignment with the requirements of the electricity at work regulations 1989.

In short my interpretation in the use of BS7671 covers the installation of LV electrical equipment to ensure that electrical installation work meets the requirements of the Electricity at Work Regulations 1989.

I'm not sure why anyone would specify an IEC standard for electrical installation when we have BS7671 that will similar but have UK specifics.

Also I am not sure why a 'power station' would be omitted from the scope of BS7671 when the electricity at work regulation 1989 applies there.

Any thoughts  on how to navigate this challenge would be appreciated?

Kind regards.

Chris

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    What sort of "power station" are we talking about? Something like another Drax, or something smaller and modular or something else? (the term even seems to get used for a few 12V batteries and an inverter these days). I'm just wondering if some or all of it is manufactured abroad and later dropped onto site (and other such units may likewise be dropped onto sites in other countries) - so working to a single standard would be convenient.

    If it were say the output from a solar farm or small hydro scheme, at LV, it could almost come under the heading of a "system for distribution of electricity to the public" which is excluded from BS 7671 by 110.2(i) (depending on quite where you'd draw the line between generation on distribution). Certainly I'd expect BS 7671 to be used for say offices with 13A sockets, but on the other extreme if it was more of a shipping container like unmanned box that was just connected into the grid, it may feel more like a piece of equipment than BS 7671 territory.

      - Andy.

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  • 0

    What sort of "power station" are we talking about? Something like another Drax, or something smaller and modular or something else? (the term even seems to get used for a few 12V batteries and an inverter these days). I'm just wondering if some or all of it is manufactured abroad and later dropped onto site (and other such units may likewise be dropped onto sites in other countries) - so working to a single standard would be convenient.

    If it were say the output from a solar farm or small hydro scheme, at LV, it could almost come under the heading of a "system for distribution of electricity to the public" which is excluded from BS 7671 by 110.2(i) (depending on quite where you'd draw the line between generation on distribution). Certainly I'd expect BS 7671 to be used for say offices with 13A sockets, but on the other extreme if it was more of a shipping container like unmanned box that was just connected into the grid, it may feel more like a piece of equipment than BS 7671 territory.

      - Andy.

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